1. Full process testing equipment, full inspection on the production line, automatic screening of non-conforming products, ensuring a 100% pass rate of finished products;

2. Real time quality monitoring of products during the production process, combined with online data collection of equipment such as laser calipers and ultrasonic measuring instruments, ensures the stability of the company's process capability through data analysis of real-time information collection, and conducts offline shipment sampling inspections;

3. Mass production stability: Quantify product consistency through the score of the "YT-202307-QC009 Mass Production Product Month on Month Evaluation Form", and control each key action and variable in the extrusion process from six aspects: measurement system management, production equipment management, process technology management, supply chain management, employee skill management, and clean area environmental management, to ensure the consistency and stability of product quality;

4. Verify the assembly of samples and mass-produced products to ensure the stability of the backend process.

5. Dynamic 10000 level workshop control: While ensuring the allowable quantity of dust particles and microorganisms in accordance with standard regulations, increase equipment capacity to ensure air exchange rate and circulation, maintain static pressure difference, and ensure monitoring frequency at the same time. In addition, by focusing on controlling dust producing areas, increasing particle detection points, identifying areas with concentrated particle concentrations, and enhancing gas collection and control capabilities; In key processes such as product production and packaging, static electricity is removed through technical means to avoid electrostatic adsorption of dust; We have optimized the layout and supporting equipment in the workshop, added operational standards for relevant personnel, and conducted regular inspections of the optimization process to ensure dynamic cleanliness at the 10000 level.